As long as its sealed light it should work. But you'll get some yeast at the bottom and may not be able to us the bottling bucket afterwards to bottle. If you don't have something else to use I would suggest not transferring to a secondary and just let it sit another week in primary.
It's not necessary, but it's not a bad thing either. Some people find that their beer clears a bit better if they secondary. In your case I'd go without the secondary.